Cleanflight - Configurator

Crossplatform configuration tool for Cleanflight flight control system

Allows you to configure your aircraft via a GUI.
Supports Cleanflight only.
https://github.com/cleanflight/cleanflight
The GUI application and flight controller are both open-source.
Various types of aircraft are supported by the tool and by cleanflight, e.g. quadcopters, hexacopters, octocopters and fixed-wing aircraft.